20946813

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:313

約数の個数: 24

約数和(自身を含む): 29782368

約数和(自身を除く): 8835555

約数列:

[1, 3, 23, 67, 69, 197, 201, 529, 591, 1541, 1587, 4531, 4623, 13199, 13593, 35443, 39597, 104213, 106329, 303577, 312639, 910731, 6982271, 20946813]

約数ペア:

[(1, 20946813), (3, 6982271), (23, 910731), (67, 312639), (69, 303577), (197, 106329), (201, 104213), (529, 39597), (591, 35443), (1541, 13593), (1587, 13199), (4531, 4623)]